[INFO] cloning repository https://github.com/zedddie16/rcmalloc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zedddie16/rcmalloc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzedddie16%2Frcmalloc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzedddie16%2Frcmalloc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] be8366ccf0ee1627396b8d01c0f1688c1fd37a16
[INFO] testing zedddie16/rcmalloc against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzedddie16%2Frcmalloc" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/zedddie16/rcmalloc
[INFO] finished tweaking git repo https://github.com/zedddie16/rcmalloc
[INFO] tweaked toml for git repo https://github.com/zedddie16/rcmalloc written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/zedddie16/rcmalloc on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/zedddie16/rcmalloc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7181bd5f52f898831475e1fffcbda4b233b5218118196cda429d2bf5fb90d3d
[INFO] running `Command { std: "docker" "start" "-a" "b7181bd5f52f898831475e1fffcbda4b233b5218118196cda429d2bf5fb90d3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7181bd5f52f898831475e1fffcbda4b233b5218118196cda429d2bf5fb90d3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7181bd5f52f898831475e1fffcbda4b233b5218118196cda429d2bf5fb90d3d", kill_on_drop: false }`
[INFO] [stdout] b7181bd5f52f898831475e1fffcbda4b233b5218118196cda429d2bf5fb90d3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a25296e16237bc896d29952fcc08ed2301a9ece3283f6b2460a534b9c7efb05a
[INFO] running `Command { std: "docker" "start" "-a" "a25296e16237bc896d29952fcc08ed2301a9ece3283f6b2460a534b9c7efb05a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling rcmalloc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `head_initialized` is assigned to, but never used
[INFO] [stdout]   --> src/lib.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |             let mut head_initialized = false;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_head_initialized` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `head_node`
[INFO] [stdout]   --> src/lib.rs:77:26
[INFO] [stdout]    |
[INFO] [stdout] 77 |                     Some(head_node) => {
[INFO] [stdout]    |                          ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_head_node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `head_initialized` is never read
[INFO] [stdout]   --> src/lib.rs:85:25
[INFO] [stdout]    |
[INFO] [stdout] 85 |                         head_initialized = true;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ptr`
[INFO] [stdout]    --> src/lib.rs:163:30
[INFO] [stdout]     |
[INFO] [stdout] 163 |     unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout) {}
[INFO] [stdout]     |                              ^^^ help: if this is intentional, prefix it with an underscore: `_ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layout`
[INFO] [stdout]    --> src/lib.rs:163:44
[INFO] [stdout]     |
[INFO] [stdout] 163 |     unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout) {}
[INFO] [stdout]     |                                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `align_up` is never used
[INFO] [stdout]   --> src/lib.rs:31:4
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn align_up(addr: usize, align: usize) -> usize {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Layout` and `dealloc`
[INFO] [stdout]  --> src/main.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 |     alloc::{Layout, dealloc},
[INFO] [stdout]   |             ^^^^^^  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /         loop {
[INFO] [stdout] 13 | |             let beb = 21;
[INFO] [stdout] 14 | |             _ = beb
[INFO] [stdout] 15 | |         }
[INFO] [stdout]    | |_________- any code following this expression is unreachable
[INFO] [stdout] 16 |       }
[INFO] [stdout] 17 |       let timer = Instant::now();
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut counter = 0;
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `counter`
[INFO] [stdout]   --> src/main.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut counter = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_counter`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timer`
[INFO] [stdout]   --> src/main.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let timer = Instant::now();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_timer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `elapsed`
[INFO] [stdout]   --> src/main.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let elapsed = timer.elapsed();
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_elapsed`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timer2`
[INFO] [stdout]   --> src/main.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let timer2 = Instant::now();
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_timer2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `elapsed2`
[INFO] [stdout]   --> src/main.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let elapsed2 = timer2.elapsed();
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_elapsed2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.84s
[INFO] running `Command { std: "docker" "inspect" "a25296e16237bc896d29952fcc08ed2301a9ece3283f6b2460a534b9c7efb05a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a25296e16237bc896d29952fcc08ed2301a9ece3283f6b2460a534b9c7efb05a", kill_on_drop: false }`
[INFO] [stdout] a25296e16237bc896d29952fcc08ed2301a9ece3283f6b2460a534b9c7efb05a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 950c9d5654195b6d05b1d2d474b1e5e91b5d600092b85edf97a939788a7e60f1
[INFO] running `Command { std: "docker" "start" "-a" "950c9d5654195b6d05b1d2d474b1e5e91b5d600092b85edf97a939788a7e60f1", kill_on_drop: false }`
[INFO] [stdout] warning: variable `head_initialized` is assigned to, but never used
[INFO] [stdout]   --> src/lib.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |             let mut head_initialized = false;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_head_initialized` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `head_node`
[INFO] [stdout]   --> src/lib.rs:77:26
[INFO] [stdout]    |
[INFO] [stdout] 77 |                     Some(head_node) => {
[INFO] [stdout]    |                          ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_head_node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `head_initialized` is never read
[INFO] [stdout]   --> src/lib.rs:85:25
[INFO] [stdout]    |
[INFO] [stdout] 85 |                         head_initialized = true;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ptr`
[INFO] [stdout]    --> src/lib.rs:163:30
[INFO] [stdout]     |
[INFO] [stdout] 163 |     unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout) {}
[INFO] [stdout]     |                              ^^^ help: if this is intentional, prefix it with an underscore: `_ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layout`
[INFO] [stdout]    --> src/lib.rs:163:44
[INFO] [stdout]     |
[INFO] [stdout] 163 |     unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout) {}
[INFO] [stdout]     |                                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `align_up` is never used
[INFO] [stdout]   --> src/lib.rs:31:4
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn align_up(addr: usize, align: usize) -> usize {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rcmalloc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Layout` and `dealloc`
[INFO] [stdout]  --> src/main.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 |     alloc::{Layout, dealloc},
[INFO] [stdout]   |             ^^^^^^  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /         loop {
[INFO] [stdout] 13 | |             let beb = 21;
[INFO] [stdout] 14 | |             _ = beb
[INFO] [stdout] 15 | |         }
[INFO] [stdout]    | |_________- any code following this expression is unreachable
[INFO] [stdout] 16 |       }
[INFO] [stdout] 17 |       let timer = Instant::now();
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut counter = 0;
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `counter`
[INFO] [stdout]   --> src/main.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut counter = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_counter`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timer`
[INFO] [stdout]   --> src/main.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let timer = Instant::now();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_timer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `elapsed`
[INFO] [stdout]   --> src/main.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let elapsed = timer.elapsed();
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_elapsed`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timer2`
[INFO] [stdout]   --> src/main.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let timer2 = Instant::now();
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_timer2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `elapsed2`
[INFO] [stdout]   --> src/main.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let elapsed2 = timer2.elapsed();
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_elapsed2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `head_initialized` is assigned to, but never used
[INFO] [stdout]   --> src/lib.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |             let mut head_initialized = false;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_head_initialized` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `head_node`
[INFO] [stdout]   --> src/lib.rs:77:26
[INFO] [stdout]    |
[INFO] [stdout] 77 |                     Some(head_node) => {
[INFO] [stdout]    |                          ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_head_node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `head_initialized` is never read
[INFO] [stdout]   --> src/lib.rs:85:25
[INFO] [stdout]    |
[INFO] [stdout] 85 |                         head_initialized = true;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ptr`
[INFO] [stdout]    --> src/lib.rs:163:30
[INFO] [stdout]     |
[INFO] [stdout] 163 |     unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout) {}
[INFO] [stdout]     |                              ^^^ help: if this is intentional, prefix it with an underscore: `_ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layout`
[INFO] [stdout]    --> src/lib.rs:163:44
[INFO] [stdout]     |
[INFO] [stdout] 163 |     unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout) {}
[INFO] [stdout]     |                                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `align_up` is never used
[INFO] [stdout]   --> src/lib.rs:31:4
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn align_up(addr: usize, align: usize) -> usize {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "950c9d5654195b6d05b1d2d474b1e5e91b5d600092b85edf97a939788a7e60f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "950c9d5654195b6d05b1d2d474b1e5e91b5d600092b85edf97a939788a7e60f1", kill_on_drop: false }`
[INFO] [stdout] 950c9d5654195b6d05b1d2d474b1e5e91b5d600092b85edf97a939788a7e60f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] aef9e3ecb978a7cb42a8a6a5a7c4b3d0a9660980c4098104fdeb3da2423de514
[INFO] running `Command { std: "docker" "start" "-a" "aef9e3ecb978a7cb42a8a6a5a7c4b3d0a9660980c4098104fdeb3da2423de514", kill_on_drop: false }`
[INFO] [stderr] warning: variable `head_initialized` is assigned to, but never used
[INFO] [stderr]   --> src/lib.rs:74:17
[INFO] [stderr]    |
[INFO] [stderr] 74 |             let mut head_initialized = false;
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_head_initialized` instead
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `head_node`
[INFO] [stderr]   --> src/lib.rs:77:26
[INFO] [stderr]    |
[INFO] [stderr] 77 |                     Some(head_node) => {
[INFO] [stderr]    |                          ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_head_node`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `head_initialized` is never read
[INFO] [stderr]   --> src/lib.rs:85:25
[INFO] [stderr]    |
[INFO] [stderr] 85 |                         head_initialized = true;
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ptr`
[INFO] [stderr]    --> src/lib.rs:163:30
[INFO] [stderr]     |
[INFO] [stderr] 163 |     unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout) {}
[INFO] [stderr]     |                              ^^^ help: if this is intentional, prefix it with an underscore: `_ptr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `layout`
[INFO] [stderr]    --> src/lib.rs:163:44
[INFO] [stderr]     |
[INFO] [stderr] 163 |     unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout) {}
[INFO] [stderr]     |                                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stderr] 
[INFO] [stderr] warning: function `align_up` is never used
[INFO] [stderr]   --> src/lib.rs:31:4
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn align_up(addr: usize, align: usize) -> usize {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rcmalloc` (lib) generated 6 warnings (run `cargo fix --lib -p rcmalloc` to apply 3 suggestions)
[INFO] [stderr] warning: unused imports: `Layout` and `dealloc`
[INFO] [stderr]  --> src/main.rs:2:13
[INFO] [stderr]   |
[INFO] [stderr] 2 |     alloc::{Layout, dealloc},
[INFO] [stderr]   |             ^^^^^^  ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/main.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | /         loop {
[INFO] [stderr] 13 | |             let beb = 21;
[INFO] [stderr] 14 | |             _ = beb
[INFO] [stderr] 15 | |         }
[INFO] [stderr]    | |_________- any code following this expression is unreachable
[INFO] [stderr] 16 |       }
[INFO] [stderr] 17 |       let timer = Instant::now();
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let mut counter = 0;
[INFO] [stderr]    |         ----^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `counter`
[INFO] [stderr]   --> src/main.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let mut counter = 0;
[INFO] [stderr]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_counter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `timer`
[INFO] [stderr]   --> src/main.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let timer = Instant::now();
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_timer`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `elapsed`
[INFO] [stderr]   --> src/main.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let elapsed = timer.elapsed();
[INFO] [stderr]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_elapsed`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `timer2`
[INFO] [stderr]   --> src/main.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let timer2 = Instant::now();
[INFO] [stderr]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_timer2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `elapsed2`
[INFO] [stderr]   --> src/main.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let elapsed2 = timer2.elapsed();
[INFO] [stderr]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_elapsed2`
[INFO] [stderr] 
[INFO] [stderr] warning: `rcmalloc` (bin "alloc-test" test) generated 8 warnings (run `cargo fix --bin "alloc-test" -p rcmalloc --tests` to apply 7 suggestions)
[INFO] [stderr] warning: `rcmalloc` (lib test) generated 6 warnings (6 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rcmalloc-3b2da87b811934fe)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/alloc_test-74370a792126844f)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rcmalloc
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "aef9e3ecb978a7cb42a8a6a5a7c4b3d0a9660980c4098104fdeb3da2423de514", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aef9e3ecb978a7cb42a8a6a5a7c4b3d0a9660980c4098104fdeb3da2423de514", kill_on_drop: false }`
[INFO] [stdout] aef9e3ecb978a7cb42a8a6a5a7c4b3d0a9660980c4098104fdeb3da2423de514